EVO All Evo Model Discussion

Valve seal or piston rings?

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Old Jun 14, 2020 | 07:40 AM
  #11  
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I would not reuse the gaskets. It is a lot of work to take all that off, and risking a leak just isn't worth it. Now, if you HAVE to, the rubber type gaskets can be reused. But you don't know how long those things have been on there, so just count on a gasket set.

If the plugs aren't covered in oil, I would not worry about a little smoke. Or is it fogging? That is, a lot of smoke? How long does a quart of oil last? Using a quart in 1000 miles (2.2KM) is pretty normal.
 
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Old Jun 14, 2020 | 07:50 AM
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Always replace any motor gaskets, only time I ever reuse one is the primary cover. You don't want to do things twice to try and save a buck or two.
 
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Old Jun 14, 2020 | 08:31 AM
  #13  
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Originally Posted by Dr.Hess
I would not reuse the gaskets. It is a lot of work to take all that off, and risking a leak just isn't worth it. Now, if you HAVE to, the rubber type gaskets can be reused. But you don't know how long those things have been on there, so just count on a gasket set.

If the plugs aren't covered in oil, I would not worry about a little smoke. Or is it fogging? That is, a lot of smoke? How long does a quart of oil last? Using a quart in 1000 miles (2.2KM) is pretty normal.
It's not fogging, but it is noticeable. I will do the compression test, and I will come back with the results.
 
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Old Jun 18, 2020 | 12:22 PM
  #14  
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Ok,

I am back. Did the compression test. Here the pics:
What do you guys think? There is some difference, but is it so bad? Or is it tolerated?



​​​
 
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Old Jun 18, 2020 | 12:28 PM
  #15  
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I don't think that looks too bad. I think the spec for "bad" is 10% difference, in general, and you are under that. If I were you, I'd just run what you have and not worry about it. Eventually, the base gasket(s) will start leaking and you can re-ring it then.
 
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Old Jun 18, 2020 | 12:35 PM
  #16  
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Originally Posted by Dr.Hess
I don't think that looks too bad. I think the spec for "bad" is 10% difference, in general, and you are under that. If I were you, I'd just run what you have and not worry about it. Eventually, the base gasket(s) will start leaking and you can re-ring it then.
Thanx for your fast reply.
When I checked the plugs again, they where black. Is it a sign that it runs to rich?
 
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Old Jun 18, 2020 | 01:15 PM
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if black sooty, yes rich
 
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Old Jun 18, 2020 | 01:21 PM
  #18  
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Originally Posted by mike131
if black sooty, yes rich
Thanx, Mike
 
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Old Jun 19, 2020 | 02:13 PM
  #19  
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no problem
 
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Old Jun 19, 2020 | 03:28 PM
  #20  
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[QUOTE=Elecglide;

PS, sorry 4 my bad writing. I am from Belgium.[/QUOTE]

Please don’t apologize, your English is way better than our Belgian !

”Half the world is bilingual, the rest are Americans”

lol
 

Last edited by eighteight; Jun 19, 2020 at 03:33 PM.
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